World War I saw the use of trucks, tanks, machine guns and airplanes, but it also relied on the horse. An estimated 8 million horses were used by all combatants during the conflict from 1914-1918. This is considered the first and only time horses were widely used in a global conflict.

Horses and mules proved more reliable than mechanized transport and it took far less to look after them. They served as pack animals hauling food, water, ammunition and medical supplies to troops at the front. Horses proved invaluable moving artillery pieces around in the mud and slime of the battlefield.

The Canadian Army Service Corps (CASC) Veterinary Services tended to sick and wounded horses. They had a Mobile Services group to look after horses in the field. There was even an evacuation station at the rear where sick or wounded animals could be taken for care. The British and the Germans also had units assigned to tend to horses.

At Vimy Ridge for example some 500,000 horses pulled artillery pieces into position, brought supplies, ammunition and shells from the rear to forward positions in preparation for the attack. To keep the horses going about 600,000 gallons of water per day was required.

Conditions faced by horses in World War I were harsh, Many died from starvation, disease and exhaustion while many died from artillery fire.

The British Army used over 1 million horses and mules during the war. More than 400,000 of them were killed. In one day at the Battle of Verdun more that 7,000 horses perished.

Horses became more difficult to replace as the war went on. In order to meet the need horses were purchased from Australia, Argentina, Canada and the United States. In Britain horses were conscripted from farms but that supply was soon exhausted.

At the end of the war many horses were put down as too ill or too old. Many were sold to slaughterhouses or to locals in the war zones. Quarantine restrictions also prevented many from being returned to their countries of origin.

Cavalry units did exist and were used at various times. It became clear horses were vulnerable to trenches, machine guns and barbed wire. Soldiers on horseback were dismounted and fought as infantry.

The British mounted a cavalry charge early in the war near Mons in 1914. It was a disaster. Later in 1918 they charged at the German lines once again it was unsuccessful. Out of 150 horses only 4 survived the charge the rest cut down by German machine gun fire.

Charge of Flowerdew’s Squadron. Photo of painting by Alfred Munnings. Photo Canadian War Museum.

Canada’s most noted cavalry unit was the Lord Strathcona’s Horse. Most of their war was spent as infantry, but they did mount a charge in the Last One Hundred Days of the war with minor success. At the Battle of Moreuil Wood mounted cavalry of 100 horses and men charged the German lines defended by roughly 300 enemy. The Germans surrendered but three-quarters of the cavalry were killed or wounded. The success of the attack was due to the complete surprise of the Germans seeing the mad charge of the horse soldiers bearing down on them at breakneck speed. This became known as the “Charge of Flowerdew’s Squadron” after the commander who was killed in the attack. He was later awarded the Victoria Cross for this action.

“War Horse” a 1982 book by British author Michael Mopurgo and later made first into a stage play and then a movie by Steven Spielberg depicts the life of a war horse quite graphically. It also shows the love and affection many of the soldiers had for these valiant beasts.